U2510B Datasheet, PDF (5/15 Pages) ATMEL Corporation – All-Band AM/FM Receiver and Audio Amplifier

U2510B
Electrical Characteristics (continued)
V_S = 6 V, T_amb = 25°C, test circuit (figure 16), unless otherwise specified
Parameters
Test Conditions / Pins Symbol Min.
AM rejection ratio
m = 30%
AM_RR
RF sensitivity
(S+N)/N = 26 dB
V_i2
(S+N)/N = 46 dB
V_i2
Limiting threshold (-3 dB)
V_i2
Mute voltage
Test point: Mute
V_i2 = 0
V_i2 = 60 dBmV
V_mute
V_mute
Mute depth
Referred to V₀ at V_i2 = 0
S₆ = A
MD
S₆ = C
MD
AFC holding range
f_OSC > f_in, S₃ = A, S₆ = A
V_{i2 x} 10 dBmV
V_i2 = 20 dBmV
V_i2 = 80 dBmV
FHR
FHR
FHR
LED current
Oscillator voltage
eZ_load = 2.5 kW
Pin 7
I_LED
V_OSC
AM section V_i1 = 60 dBmV, f_i1 = 1.6 MHz, f_m = 1 kHz, m = 30%, f_iIF = 455 kHz,
AF measuring range: 300 Hz to 20 kHz, (S₂ = AM, S₁ = B, test point: V_D)
AM front end voltage gain
GV_AM = 20 log (V_iIF/V_i1)
V_i1 = 20 dBmV, S₁ = A
GV_AM
Recovered audio voltage
V_{D af1}
Detector output resistance
Detector output distortion
Pin 23
V_i1 = 60 dBmV
V_i1 = 105 dBmV
R_Do
THD
THD
RF sensitivity
AGC figure of merit referred
to V_{D af}
(S+N)/N= 10 dB
(S+N)/N= 26 dB
(S+N)/N= 46 dB
V_i1 = 105 dBmV, voltage
drop (V_{D af}) = –10 dB
V_i1
V_i1
V_i1
FOM
IF input resistance
Pin 16
Z_i
LED current
I_LED
Oscillator voltage
Pin 5
V_OSC
Typ.
25
9
22
3
1.8
0.4
26
20
no AFC
" 180
" 220
5.5
180
25
70
7.5
1
3
0
16
35
100
3.1
5.5
160
Max.
Unit
dB
dBmV
dBmV
dBmV
V
V
dB
dB
kHz
kHz
mA
mV
dB
mV
kW
%
%
dBmV
dBmV
dBmV
dB
kW
mA
mV
Rev. A3, 23-Feb-01
5 (15)